Why this sack has no TOG

TOG is a useful number when the thing you’re buying is a padded sack. It measures how much air the fill traps. More fill, higher TOG, warmer — until the room isn’t, or is, and then you’re swapping sacks.

The Sloth classic has no synthetic fill. Australian merino sits next to the skin; organic cotton sits on the outside. Merino holds a little warmth when the nursery drops and lets it go when it doesn’t. That isn’t a TOG. It’s a fibre doing the job a drawer of TOGs was trying to do.

Use it in rooms around 17–24°C. If the night is at the warm end, a bodysuit underneath is enough. If the AC is on, add long sleeves. Check the tummy or the neck, not the hands.

That’s the whole reason to buy it: not a new number, a sack that keeps up with a room that doesn’t stay the same.